feat(infra): implement ClientContext for IP and UserAgent from IHttpContextAccessor

src/api/SIGCM2.Infrastructure/Http/ClientContext.cs

@@ -0,0 +1,20 @@
+using Microsoft.AspNetCore.Http;
+using SIGCM2.Application.Abstractions;
+
+namespace SIGCM2.Infrastructure.Http;
+
+public sealed class ClientContext : IClientContext
+{
+    private readonly IHttpContextAccessor _accessor;
+
+    public ClientContext(IHttpContextAccessor accessor)
+    {
+        _accessor = accessor;
+    }
+
+    public string Ip =>
+        _accessor.HttpContext?.Connection?.RemoteIpAddress?.ToString() ?? "0.0.0.0";
+
+    public string? UserAgent =>
+        _accessor.HttpContext?.Request?.Headers.UserAgent.ToString();
+}